添加项目文件。

Sai.Toolkit.Mvvm/Converters/TaskResultConverter.cs

@@ -0,0 +1,17 @@
+using System.Globalization;
+using System.Windows.Data;
+
+namespace Sai.Toolkit.Mvvm.Converters;
+
+public class TaskResultConverter : IValueConverter
+{
+	public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+	{
+		return value is Task<string> val && val.IsCompleted ? val.Result : (object)null;
+	}
+
+	public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+	{
+		throw new NotImplementedException();
+	}
+}